Examples of ptolemy.data.expr.Parameter

ptolemy.data.expr.Parameter

Parameter extends Variable with additional support for string-valued variables that makes these friendlier at the user interface level. In particular, this class supports an annotation that specifies choices for values. A user interface can use this to present a choice dialog that offers the specified values. This is typically used when a particular set of choices make sense. The values can be any expression, or if used in conjunction with string mode, any string.

By default, an instance of Parameter, unlike Variable, is persistent.

By convention, an instance of NamedObj has a set of attributes, some of which are visible to users and some of which are not. When a user interface presents these attributes for editing, it presents only those that are visible. By default, an instance of Parameter is visible, as indicated by the fact that it returns FULL in its getVisibility() method. This can be overridden by calling setVisibility().
@author Neil Smyth, Edward A. Lee, Xiaojun Liu @version $Id: Parameter.java,v 1.120 2007/02/04 01:27:39 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Yellow (eal) @Pt.AcceptedRating Red (cxh) @see ptolemy.data.expr.PtParser @see ptolemy.data.Token

     */
    public RecursiveLattice(CompositeEntity container, String name) throws NameDuplicationException, IllegalActionException  {
        super(container, name);
        input.setTypeEquals(BaseType.DOUBLE);
        output.setTypeEquals(BaseType.DOUBLE);
        reflectionCoefficients = new Parameter(this, "reflectionCoefficients");
        reflectionCoefficients.setExpression("{0.804534, -0.820577, 0.521934, -0.205}");
    }

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     * actor with this name.
     */
    public SequentialClock(CompositeEntity container, String name) throws NameDuplicationException, IllegalActionException  {
        super(container, name);
        output = new TypedIOPort(this, "output", false, true);
        period = new Parameter(this, "period", new DoubleToken(2.0));
        period.setTypeEquals(BaseType.DOUBLE);
        offsets = new Parameter(this, "offsets");
        offsets.setExpression("{0.0, 1.0}");
        offsets.setTypeEquals(new ArrayType(BaseType.DOUBLE));
        attributeChanged(offsets);
        IntToken[] defaultValues = new IntToken[2];
        defaultValues[0] = new IntToken(1);
        defaultValues[1] = new IntToken(0);
        ArrayToken defaultValueToken = new ArrayToken(BaseType.INT, defaultValues);
        values = new Parameter(this, "values", defaultValueToken);
        output.setTypeAtLeast(ArrayType.elementType(values));
        attributeChanged(values);
    }

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     * @exception NameDuplicationException If the container already has an
     * actor with this name.
     */
    public IIR(CompositeEntity container, String name) throws NameDuplicationException, IllegalActionException  {
        super(container, name);
        numerator = new Parameter(this, "numerator");
        numerator.setExpression("{1.0}");
        attributeChanged(numerator);
        denominator = new Parameter(this, "denominator");
        denominator.setExpression("{1.0}");
        attributeChanged(denominator);
        output.setTypeAtLeast(ArrayType.elementType(numerator));
        output.setTypeAtLeast(ArrayType.elementType(denominator));
        input.setTypeAtLeast(output);

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        super(container, name);


        _argumentsList = new NamedList(this);


        // FIXME: Should libraryDirectory be a FileParameter?
        libraryDirectory = new Parameter(this, "libraryDirectory",
                new StringToken("jni/lib"));
        nativeFunction = new Parameter(this, "nativeFunction", new StringToken(
                "unknownFunction"));
        nativeLibrary = new Parameter(this, "nativeLibrary", new StringToken(
                "unknownLibrary"));


        // Create our own custom editor
        new JNIActorEditorFactory(this, "_editorFactory");

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     * @exception NameDuplicationException If the container already has an
     * actor with this name.
     */
    public Pulse(CompositeEntity container, String name) throws NameDuplicationException, IllegalActionException  {
        super(container, name);
        indexes = new Parameter(this, "indexes");
        indexes.setExpression("{0, 1}");
        indexes.setTypeEquals(new ArrayType(BaseType.INT));
        attributeChanged(indexes);
        values = new Parameter(this, "values");
        values.setExpression("{1, 0}");
        repeat = new Parameter(this, "repeat", new BooleanToken(false));
        repeat.setTypeEquals(BaseType.BOOLEAN);
        attributeChanged(repeat);
        output.setTypeAtLeast(ArrayType.elementType(values));
        attributeChanged(values);
    }

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        super(container, name);
        input.setMultiport(true);
        reset = new TypedIOPort(this, "reset", true, false);
        reset.setTypeEquals(BaseType.BOOLEAN);
        reset.setMultiport(true);
        init = new Parameter(this, "init");
        init.setExpression("0");
        lowerBound = new Parameter(this, "lowerBound");
        lowerBound.setTypeSameAs(init);
        upperBound = new Parameter(this, "upperBound");
        upperBound.setTypeSameAs(init);
        output.setTypeAtLeast(init);
        output.setTypeAtLeast(input);
    }

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     * @exception NameDuplicationException If the container already has an
     * actor with this name.
     */
    public Recorder(CompositeEntity container, String name) throws NameDuplicationException, IllegalActionException  {
        super(container, name);
        capacity = new Parameter(this, "capacity", new IntToken(-1));
        capacity.setTypeEquals(BaseType.INT);
    }

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     * by the proposed container.
     */
    public Commutator(CompositeEntity container, String name) throws NameDuplicationException, IllegalActionException  {
        super(container, name);
        input.setMultiport(true);
        output_tokenProductionRate = new Parameter(output, "tokenProductionRate");
        output_tokenProductionRate.setExpression("0");
        input_tokenConsumptionRate = new Parameter(input, "tokenConsumptionRate");
        input_tokenConsumptionRate.setExpression("blockSize");
        blockSize = new Parameter(this, "blockSize");
        blockSize.setTypeEquals(BaseType.INT);
        blockSize.setExpression("1");
    }

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     * @exception NameDuplicationException If the name coincides with
     * an actor already in the container.
     */
    public Sequence(CompositeEntity container, String name) throws IllegalActionException, NameDuplicationException  {
        super(container, name);
        values = new Parameter(this, "values");
        values.setExpression("{1}");
        repeat = new Parameter(this, "repeat", BooleanToken.FALSE);
        repeat.setTypeEquals(BaseType.BOOLEAN);
        holdLastOutput = new Parameter(this, "holdLastOutput", BooleanToken.FALSE);
        holdLastOutput.setTypeEquals(BaseType.BOOLEAN);
        enable = new TypedIOPort(this, "enable", true, false);
        enable.setTypeEquals(BaseType.BOOLEAN);
        output = new TypedIOPort(this, "output", false, true);
        output.setTypeAtLeast(ArrayType.elementType(values));

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     * @exception IllegalActionException If the actor cannot be contained
     * by the proposed container.
     */
    public Distributor(CompositeEntity container, String name) throws NameDuplicationException, IllegalActionException  {
        super(container, name);
        blockSize = new Parameter(this, "blockSize");
        blockSize.setTypeEquals(BaseType.INT);
        blockSize.setExpression("1");
        input_tokenConsumptionRate = new Parameter(input, "tokenConsumptionRate", new IntToken(0));
        input_tokenConsumptionRate.setVisibility(Settable.NOT_EDITABLE);
        input_tokenConsumptionRate.setTypeEquals(BaseType.INT);
        input_tokenConsumptionRate.setPersistent(false);
        output_tokenProductionRate = new Parameter(output, "tokenProductionRate");
        output_tokenProductionRate.setVisibility(Settable.NOT_EDITABLE);
        output_tokenProductionRate.setTypeEquals(BaseType.INT);
        output_tokenProductionRate.setExpression("blockSize");
        output_tokenProductionRate.setPersistent(false);
        output.setMultiport(true);

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